194807680

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3853}}^1$

素因数の和:3951

約数の個数: 64

約数和(自身を含む): 471729600

約数和(自身を除く): 276921920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1580, 2528, 3160, 3853, 5056, 6320, 7706, 10112, 12640, 15412, 19265, 25280, 30824, 38530, 50560, 61648, 77060, 123296, 154120, 246592, 304387, 308240, 493184, 608774, 616480, 1217548, 1232960, 1521935, 2435096, 2465920, 3043870, 4870192, 6087740, 9740384, 12175480, 19480768, 24350960, 38961536, 48701920, 97403840, 194807680]

約数ペア:

[(1, 194807680), (2, 97403840), (4, 48701920), (5, 38961536), (8, 24350960), (10, 19480768), (16, 12175480), (20, 9740384), (32, 6087740), (40, 4870192), (64, 3043870), (79, 2465920), (80, 2435096), (128, 1521935), (158, 1232960), (160, 1217548), (316, 616480), (320, 608774), (395, 493184), (632, 308240), (640, 304387), (790, 246592), (1264, 154120), (1580, 123296), (2528, 77060), (3160, 61648), (3853, 50560), (5056, 38530), (6320, 30824), (7706, 25280), (10112, 19265), (12640, 15412)]